L_INT LImageListControl::GetFirstVisible ()
Gets the index of the first visible item in the ImageList Control. This item is the one at the upper left corner of the control's view.
| Value | Meaning |
|---|---|
| >= 0 | The zero-based index of the first visible item. |
| < 0 | An error occurred. Refer to Return Codes. |
Win32, x64.
L_INT LImageListControl__GetFirstVisibleExample(LImageListControl & ImageList, L_INT& nLastVisible){L_INT nViewSize, nFirstVisible;L_INT nColsOrRowsCount, nItemsCount;nViewSize = ImageList.GetViewSize();nFirstVisible = ImageList.GetFirstVisible();if (ImageList.GetScrollStyle() == SCROLLSTYLE_VERTICAL)nColsOrRowsCount = ImageList.GetColumnCount();elsenColsOrRowsCount = ImageList.GetRowCount();nLastVisible = nFirstVisible + (nViewSize * nColsOrRowsCount) - 1;nItemsCount = ImageList.GetItemCount();if (nLastVisible > nItemsCount - 1)nLastVisible = nItemsCount - 1;return SUCCESS;}
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